Mechanical Trap Toilet and Staggered Drain Line Carry

ABSTRACT

A toilet to reduce water consumption for waste disposal. One embodiment uses a toilet which has a frustum-shaped bowl, which can be substantially hermetically sealed by a saucer-shaped valve, wherein the bowl contains no water. In one embodiment, a user can depress one button to automatically open the saucer vertically down and rinse and flush urine into an adjoining drain line with about 250 ml (0.25 gallons) of water. In one embodiment, a user can depress a button to automatically release a staggered flush capable of causing solid human waste, test plastic balls, or equivalents to carry further in an adjoining drain line.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation application and claims priority from a U.S. utility patent application, Ser. No. 13/066,891, filed Apr. 26, 2011, entitled “Mechanical Trap Toilet and Staggered Drain Carry,” which is to be abandoned, which in turn was a continuation-in-part of the application entitled “Mechanical Sealable Rapid-Opening Stagger-Flush Residential Toilet,” Ser. No. 12/151,015, filed May 2, 2008, which is to be abandoned.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to the field of toilets in general and in particular to mechanical-trap toilets.

2. Description of the Prior Art

The following definitions and background information will help make this description clearer and easier to understand so that a reader can appreciate why a mechanical trap toilet can meet numerous technical ASME standards, or their functional intent, required by the Uniform Plumbing Code.

Air Gap

ASME A 112.1.2.-1991 defines air-gap as an unobstructed vertical distance through open atmosphere between the lowest opening from a pipe supplying water from a water supply to a toilet bowl and the highest level in the bowl to which water or waste may rise. The minimum ASME requirement is 50 mm (2 inches). The European Union's equivalent minimum dimension is 20 mm (0.8 inch).

Artificial Test Media

Test media acceptable to the American Society of Mechanical Engineers (ASME), are used by the International Association of Plumbing and Mechanical Operators (IAPMO), toilet-rating laboratories, manufacturers, and inventors to determine the ability of a toilet to expel solids from a toilet bowl in laboratory drain lines. They include standardized polyethylene balls. Toto of USA pioneered the use of condoms of standard capacity filled with tofu of standard weight, also known as sausages.

American Society of Mechanical Engineering (ASME)

A professional organization which defines the physical, functional, and health requirements of the Uniform Plumbing Code to be tested by a rating agency such as the International Association of Plumbing and Mechanical Officials (IAPMO) to determine if a given toilet can legally be offered with the latter's rating, for sale in many US states and Canada.

Conflicts Caused by Water Shortages

Political disputes and warfare that occur due to water shortages. They are exemplified by the following broadcast on Public Service Television (PBS), “Your Majesty, Jordan has had great relations with Israel? Can you imagine going to war with Israel for any reason?” The late King Hussein replied, “Yes, water.”

Conventional Toilets

Conventional toilets that may currently legally be offered for sale for residential and business use in the United States are of two kinds, (1) those characterized by siphon waste passageways, and (2) those characterized by wash-down waste passageways.

Corrosion

Corrosion includes erosion, pits, crevasses, etc., due to numerous corrosive acids and alkalis acting on most metals, plastics, and elastomers.

Drain Lines

Drain lines are pipes that slope from a toilet to a septic tank, a sewer which discharges into a waste treatment plant, or a receptacle in a laboratory. Ideally, gravity, augmented by automated pumps, water toilets, and water from sources other than toilets can propel, i.e. carry, human waste to a waste treatment plant. Toilet manufacturers and inventors use laboratory drain lines, which are seamless and from which about a third of the uppermost structure has been removed so that laboratory personnel can see, measure, and report drain line carry with artificial test media, as described below.

Drain Line Carry

Drain line carry is the ability of a given toilet to propel human waste (1) to a septic tank, or (2) to a sewer, or (3) to propel artificial test media from the toilet to a receptacle in a laboratory that can be used by laboratory personnel to determine whither the toilet can legally be offered for sale in a business or residence. Since solid human waste varies from person to person and over time, it is not readily possible to measure how well it carries. Consequently, the American Society of Mechanical Engineering (ASME) has devised a laboratory measuring method, defined in section 8.8 of ASME A 112.19.2-2003, which depends on laboratory personnel being able to see and measure how well 100 standard polypropylene balls carry in an seamless pipe which has an inside diameter of 100 mm (4 inches) and a straight run that inclines downward at a 2% angle from the toilet. To be legal to sell a toilet for use in a residence or business with an ASME rating, the toilet must be able to carry the balls a minimum average distance of 12.2 meters (40 feet) with no more than 6 liters (1.6 gallons) of water. Toilets that exhibit greater carrying power in a laboratory drain linen are prized (A) because they can lower the private costs of maintaining standard drain lines, and (B) because they can lower the costs of maintaining, repairing sewers, upgrading sewers and sewage plants, and to combat odor. For example, combating odor can cost San Francisco alone $100 million dollars during a 5 year period. San Francisco may have to pump 8.5 million pounds of bleach into its sewers to combat odors, and thereby further damage its own sewers and sewage treatment plants. Repairing or enlarging a sewage treatment plant for a city as large as San Francisco can cost billions of dollars.

Dual-Flush Toilet

A toilet that permits a person to use less water for urine than solid human waste.

Flush

A flush will evacuate bowl contents from a toilet bowl into an adjoining drain-line.

Flushometer Valve

A valve that controls passage of pressurized water to a toilet bowl.

Frustum-Shaped Bowl

A bowl having an inside surface without concavities or convexities inclined so that human waste is less likely to adhere to the surface and more readily detached with less rinse water.

Full Flush

The ability of a given toilet to flush an adjoining drain line. To earn an IAPMO rating a full flush must be able to carry 100 standard polypropylene test balls an average of at least 12.2 meters (40 feet) in an adjoining drain line that slopes downward from the toilet at an angle of 2%. If it cannot, the toilet may not legally be offered for sale in a residence or business.

Free Fall

Downward movement of bowl contents from a bowl via a waste passageway into an adjoining drain line under no force other that of gravity, there being no thrust or drag other than that of the bowl.

Gallon

One gallon is a U.S. Gallon that is equivalent to 3.78 liters.

International Association of Plumbing and Mechanical Operators—IAPMO

A for-profit corporation, headquartered in Ontario, California, which rates whether a new toilet brand meets ASME standards. If it does, it receives an IAPMO rating. The market for IAPMO rated toilets and toilets that meet other stringent standards is large, at least ten times greater than that for RV, boat, etc., toilets. For example, at least three or four companies that sell siphon toilets gross more than three billion US dollars a year and thereby have cash flows so large that American Standard Companies sold its toilets at a loss for ten years. According to verbal communication with an ASME engineer and an IAPMO official, inventors and makers periodically submit mechanical trap toilets to IAPMO. As of 2008, no mechanical trap toilet received an IAPMO rating, in order to be legally offered for sale as a residential or business toilet.

Laboratory Drain Line

A drain line, in a private or for-profit, laboratory, used by inventors and testing authorities for observing the ability of a toilet to carry simulated human waste, such as ASME-rated balls, but never solid human waste, towards, or into a receptacle.

Maintenance Costs of Wasting Water

On-going costs for maintenance, labor, and replacement of upstream and downstream infrastructures due to inefficiencies in water usage. These costs for one large city can exceed hundreds of millions of dollars. The cumulative costs of oil, gas, coal, and energy substitutes needed to pump water to toilets sometimes hundreds of miles away, and from toilets, are vast. Such costs and health and welfare losses to air, water, and row crop pollution by electric pumps, leaks, and effluents are all increasing.

Mechanical-Trap Toilet

A toilet that has a trap that can be opened and closed mechanically with respect to a bottom outlet of a toilet bowl.

Psychological Costs of Wasting Water

The psychological costs included mental harm caused by wasting water. Such psychological detriments can include losing one's neighborhood to a water reservoir or waste water treatment plant or losing opportunities to enjoy pristine terrain, such as valleys, streams, rivers, and countryside. These losses can deprive current and unborn generations.

Rebates

Rebates are money paid by water districts in the United States to encourage those who own toilets to replace them with ones that use less water. In addition, as mentioned below, some water districts and cities, such as the City of London, England, exchange tens of thousands of more water-saving toilets to avoid having to borrow and having to spend billions to build new water reservoirs or waste treatment plants or to enlarge old ones.

Reduced Flush

A reduced flush is a flush which can expel urine with or without toilet tissue from a toilet bowl but not feces.

Rinse

A rinse is an attempt to use water to detach adherent toilet tissue, or solid human waste, from the inside of a toilet bowl.

Siphon and Wash-Down Toilet History

Since the invention of siphon and wash-down toilets about 200 years ago, apparently no significant sanitary toilet authority, or agency, such as today's IAPMO, which protects the health of consumers using toilets and how well the toilets function, has certified a mechanical trap toilet for use in a residence or business, at least as of 2008.

Spillway

An opening in an upper part of a toilet bowl that permits an over-flowing toilet bowl to discharge into a bathroom. The top of the spillway is the lowest part of Air Gap that can prevent human waste from coming in contact with water outlets. The minimum ASME Air Gap requirement—ASME A 112.1.2.-1991 is 50 mm (2 inches). The European Union minimum is 20 mm (0.8 inch).

Staggered Flush and Drain Line Carry

A staggered flush is a method for enhancing drain line carry using flush water to strike solid human waste, the above mentioned ball, or tofu-filled condoms, from behind while they are moving in a drain line. This enhancement require an application of a physical principle that it takes less energy to keep an object in motion than to re-start it once it has come to rest.

Toilet Advocates

These politically powerful ecological interest groups are organized groups of people who seek to influence the federal government to enact laws that encourage ever-more water saving toilet technology. These toilet advocates are powerful. In 1992 they persuaded Congress to mandate a full flush may not use more than 6.0 liters (1.6 gallons). Other politically powerful toilet advocates include departments of city, state, and federal governments, plus local and regional water districts responsible for financing the construction and maintenance of numerous new water reservoirs and waste treatment plants needed by burgeoning urban populations. Toilet advocates also include influential public-interest organizations, such as the California Urban Water Council, the Sierra Club, a variety of green organizations, and the water-conservation arms of U.S. cities, states, and federal governments. The list also includes the federal government itself and numerous city and state governments which must pay for toilet water used by numerous millions of civil servants, students, citizens, and armed personnel. Studies show that regulation of toilets by the United States Government in an attempt to save water, despite objections of makers, plumbers, etc., has had significant adverse impacts on the functional efficiency of conventional toilets.

Uniform Plumbing Code (UPC)

The UPC is a code that defines minimum functional and material attributes of toilets which can legally be offered for sale in the United States. IAPMO, a for-profit company, headquartered in Ontario, California, enforces the UPC for numerous plumbing jurisdictions in Canada and many U.S. states. A committee composed of IAPMO officials, ASME engineers, representatives of toilet companies, toilet jurisdictions, etc., updates the UPC bi-yearly to reflect new plumbing inventions. A maker who wishes to receive a rating for her toilet may submit Interim Guide Criteria to the committee charged with updating the UPC. The maker's criteria should include enough detailed instructions to the UPC Interim Guide Committee how an IAPMO laboratory can test and prove to the satisfaction of the committee that the maker's proposed toilet and its innovation toilet are worthy of further consideration. If the Interim Guide Criteria committee is satisfied, the maker must submit a model of her toilet for rigorous laboratory testing by IAPMO, or an affiliated laboratory. Should the toilet passes all required tests, the committee instructs IAPMO to permit the maker to offer it for sale with its rating in any state, province, or water district that honors the rating. IAPMO informs us it has tested numerous mechanical trap toilets but as of 2008, none have earned its rating.

Urine

Urine is highly complex aqueous solution of organic chemicals that can corrode many man-made materials.

Volume of Water Per Person Per Day

A volume of water per person per day is the water used by a specific toilet to satisfy the toilet needs of an average person. Medical science and the toilet industry assume the average person defecates once and urinates four times a day. The average toilet in the United States, Canada, Japan, and Europe uses at least 30 liters (8 gallons) per person per day. Some conventional dual-flush toilets use 18 liters (4 gallons).

Toilet Bowl Water-Seal

A toilet bowl water-seal is enough water in a toilet bowl to prevent volatile toxic sewer gases, at atmospheric pressure, from rising into a bathroom. However, water-seal can evaporate with the passage of time and permit sewer gases to invade the bathroom.

Waste Passageway

A waste passageway is the part of a toilet between the bottom outlet of a bowl and an adjoining drain line. (1) Normally water in the bottom of the bowl of a siphon and wash-down toilet can prevent potentially toxic and explosive gases from entering bathrooms from adjoining drain lines. However, the water can evaporate and, furthermore, it cannot prevent sewage from backing up from the drain line and, (2) whereas, a rotational mechanical trap, which is normally hermetically sealed against the bottom outlet of the bowl and thereby prevents potentially toxic and explosive mixtures of sewer gases from entering a bathroom from an adjoining drain line, can prevent some sewage from backing up into the bathroom. In contrast, the waste passageways of siphon and wash-down toilets are less than optimal.

Wet Spot

A wet spot is the quantity of water in a toilet bowl which is wide or deep enough to slow the momentum of falling feces. The wet spot can prevent feces from sticking to the bowl, or it may permit them to stick less firmly so that they can be more readily be rinsed off. The Uniform Plumbing Code stipulates that a wet spot should have a surface area equal to, or more, than 123×100 mm (5×4 inches) and be 50 mm (2 inches) or more deep.

Viton

Viton is an extremely resilient and corrosion resistant elastomer, made and a sold by du Pont under a du Pont Performance Elastomers L.L.C trademark.

Water Seals

As mentioned above, a water seal is the quantity of water in a toilet bowl sufficient to prevent volatile sewer gases, at atmospheric pressure from rising into a bathroom. Furthermore, significant pressure or suction in an adjoining drain line can undo a water seal in conventional toilets, so that those nearby are no longer protected from sewer gases. However, water seals are less than optimal.

Mechanical Trap Toilets

Grech et al., in U.S. Pat. No. 6,871,361, filed on Mar. 29, 2005, show a conventional mechanical trap toilet which can expel human waste only a few inches from its bowl, into a black-water holding tank under the floor of an RV, or a few inches into a lake or sea from a boat. Its ability to carry human waste further than a few inches is less than optimal.

Water Outlets

Prior-art toilets almost exclusively have a plurality of water outlets, each of which is oriented to rinse toilet bowls with pressurized water in roughly the same direction, usually clockwise. For example, O'Malley et al, in U.S. Pat. No. 6,332,229, filed on Dec. 25, 2001, shows a toilet bowl which has at least two water outlets which rinse in the same direction. Huffman et al., in U.S. Pat. No. 5,715,544, filed on Feb. 10, 1995, show water outlets that rinse in the same and opposite directions. Heinze, in U.S. Pat. No. 4,404,696, filed on Sep. 20, 1983, shows one or more multi-channel water outlets that rinse a bowl in three directions, forward, rearward, and downward. Ament, in U.S. Pat. No. 4,930,167, filed on Jun. 5, 1990, shows pressurized water flowing in opposite directions within the rim of a toilet. Brower, in U.S. Pat. No. 5,123,124, filed on Jun. 23, 1992, shows a toilet bowl rinsed by rotating water outlets. Nakamura et al, in U.S. Pat. No. 6,145,138, filed on Nov. 14, 2000, show an upper part of a toilet bowl shaped so that pressurized water rinses the bowl in opposite directions. Hargraves, in U.S. Pat. No. 4,075,718, filed on Feb. 28, 1978, shows complex multi-channel high pressure nozzles. Grech et al. show two water outlets, in U.S. Pat. No. 6,871,361. One water outlet automatically jets pressurized water along a ledge (20) on one side of an upper part of a bowl in one direction. Then, the water flows over the edge of the ledge to rinse a remainder of the bowl. The other water outlet automatically rinses a second ledge and the other side of the bowl in a similar manner. However, the water outlets do not efficiently rinse an area of toilet above the ledge. Consequently they can not pass 8.6 Surface Wash Test of ASME A 112.19.2-2003 that requires the bowl be rinsed to one inch (25 ml) below the outlets. The outlets are widely separated at the rear of the toilet consequently they can not rinse the rear of the bowl, where, due to the parallel bi-lobed shape of the human buttocks feces are more apt to adhere. Consequently, the configuration of the toilet bowl and its water outlets, taught by Grech et al, are less than optimal.

Spillways

Schnitzler, in Swiss Pat. No. CH10222, filed on Mar. 13, 1898, and Kimble, in U.S. Pat. No. 988,787, filed on Apr. 4, 1911, both show toilets having spillways in upper parts of bowls. The spillways can help prevent human waste from overflowing onto floors. However, the spillways are too close to water outlets to meet ASME standard A 112.1.2-1991 which requires that there be a sufficiently wide unobstructed air gap between water in a toilet and water entering from a water supply to prevent contamination of the drinking water in the event of a negative pressure in a conduit that delivers drinkable water to the toilet.

Economic and Ecologic Costs of Toilet Water

Prior-art flush toilets currently use 28% of water used indoors in the U.S. Water reservoirs are required to store water so that there is enough on hand for towns and cities when needed. Waste treatment plants are required for sterilizing sewage and used indoor water. Reservoirs and waste treatment plants can be vast in area and frequently cost one or more billion dollars each. Many citizens do not want them in their neighborhood. Toilets in U.S. commercial buildings use about 1.2 billion gallons (4.6 billion liters) of water a day, the equivalent of the capacity of 48 full-sized water reservoirs a year. It can cost as much to enlarge a water storage reservoir as to build one; it cost approximately US $2 billion to build the Eastside Reservoir to double the storage capacity for the Metropolitan Water District of Southern California. City and regional water agencies normally borrow the initial money from state governments to build or enlarge water reservoirs and waste treatment plants to accommodate burgeoning urban populations. The state governments in turn borrow from the Federal government. Eventually, taxpayers must repay not only the borrowed billions but interest that can bring their total debt to three times the money borrowed. Current toilets are less than optimal for reducing these financial burdens.

SUMMARY OF THE INVENTION

The present invention can be implemented in numerous ways, such as in a toilet, or an equivalent waste disposal. Various aspects of the invention are described below.

In accordance with one aspect, a toilet bowl has a bottom outlet. A sealing ring surrounds the bowl near the bottom outlet. A rotational saucer-shaped seal is positioned adjacent to the bottom outlet at the entrance to a waste passageway. The saucer can be pivoted upward against the sealing ring to hermetically seal the bottom outlet of the bowl. The saucer can be pivoted downward to permit bowl contents to free fall via the waste passageway into an adjoining drain line. An automated two-stage staggered-flush carries human waste or 100 standard balls more efficiently in the adjoining drain line. All parts exposed to urine, feces, or corrosive gas are made of, or coated, by materials resistant to corrosion by the urine, feces, and gas. Moving parts are advantageously mounted with loose tolerances so that they can be operated and the saucer can be opened and closed 75,000 times without the toilet loosing its ability to pass an array of other ASME tests.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows an exploded perspective view from in front and to the right of one embodiment of our toilet bowl, a sealing ring surrounding a lower outside part of the bowl, and a rotational saucer-shaped mechanical trap in an up position, in accordance with one embodiment of the invention.

FIG. 2 shows a general view of our assembled toilet in cross section through a center plane from front to rear as viewed from right with the saucer-shaped mechanical trap pivoted down to a fully open position, in accordance with one embodiment of the invention.

FIG. 3 shows a perspective view from above and behind of electrically and manually operated controls, water connections, and spatial relationship of a pair of water conduits and opposing water outlets, in accordance with one embodiment of the invention.

FIG. 4 shows a perspective view from above and to the rear of the toilet showing turbulent rinsing patterns created by two pairs of opposing water outlets, with the rinsing patterns converging towards the front and rear of the toilet, in accordance with one embodiment of the invention.

FIG. 5A shows a saucer-shaped mechanical trap, a saucer supporting arm, and saucer-pivoting shaft in cross section with the saucer hermetically compressed against a sealing ring that surrounds the outside of a bottom part of the bowl, in accordance with one embodiment of the invention.

FIG. 5B shows detail of the saucer and sealing ring shown in FIG. 5A, in cross section, in accordance with one embodiment of the invention.

FIG. 6 shows a side view from the right of an external multi-part mechanism for opening and closing the saucer with the saucer normally locked closed, in accordance with one embodiment of the invention.

FIG. 7 shows a view similar to FIG. 6, without the timing wheel or timing belt, in accordance with one embodiment of the invention.

FIG. 8 is similar to FIG. 7. It shows a key, a catch, an electric switch, and a more detailed view of a trigger-centering spring, in accordance with one embodiment of the invention.

FIG. 9 shows a side view from the right of an external mechanism for opening and closing the saucer, with the saucer open, in accordance with one embodiment of the invention.

FIG. 10 shows a side view from the right of an arm on the timing wheel engaging the saucer-locking mechanism, in accordance with one embodiment of the invention.

FIG. 11 shows a side-view from the right of the multi-part external mechanism for opening and closing the saucer when the saucer is normally locked closed, in accordance with one embodiment of the invention.

FIG. 12 is a flow chart of the operating steps which follow depression of a button to rinse the bowl, in accordance with one embodiment of the invention.

FIG. 13 is a flow chart of the operating steps of a staggered flush, actuated by depression of a button, to expel solid human waste to a sewer, or to test how well the toilet can carry 100 plastic balls in a laboratory drain line, in accordance with one embodiment of the invention.

DRAWING Reference Numerals  22 lower support structure  23 ground  24 upper support structure  26 frustum-shaped bowl  28 front of bowl  30 rear of bowl  32 bottom outlet of bowl  34 waste passageway  36 inlet to adjoining drain line  38 reinforcing rib  44 flange of passageway  45 gasket between upper and lower support structures  46 rotational saucer  47 periphery of saucer 46  48 sealing ring  49 plate  50 main spring  51 apex of sealing ring 48  52 pressurized water feed  53 base of sealing ring 48  54 flushometer valve  56 accessory compartment  60 water conduits  62 opposing water outlets  64 spillway  66 anti-splash ledge  67 wet spot  68 rim  70 seat  72 button  74 larger button  76 electric control  79 motor for opening and closing 46  80 manual push rod  81 timing belt for 79  82 timing wheel that rotates freely on 90  84 cam  86 arm on timing wheel 82  87 catch on arm 86  90 saucer-pivoting shaft  91 key  94 gasket  96 hermetic radial seal 100 support bushing 102 trigger 108 second arm connected to hub 109 roller on 108 111 trigger-centering spring 112 catch on trigger 102 114 arm connected to roller 115 115 roller on 114 116 catch on arm 114 120 adjusting screw 122 bracket spring 124 bracket 126 electric switch 130 arm connected to spring 50 132 hub on shaft 90 134 plate molded into saucer 46 136 washer and wave washer 138 nut and jam nut 140 stud welded to plate 134 141 wall of toilet 142 lever that actuates 126

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Accordingly, several advantages of one or more aspects of the present invention are (a) a staggered flush that improves drain line carry, (b) no need for a water seal, (c) the bottom outlet of the bowl and the waste passageway are much wider than those of a siphon toilet so the bowl and waste passageway are correspondingly more unlikely to clog, (5) it can't contaminate drinking water, (6) the bowl is unlikely to over flow onto a bath room, (7) it can meet or surpass all of the historical health and functional advantages of siphon and wash-down toilets, and (8) and is more ecological because it uses much less water per-person-per-day. Furthermore, for all but very small children, a maker can customize the toilet comfortably to seat a customer of any height and weight, or customer subset, by omitting gasket 45 in FIG. 1 and FIG. 2, and separating the upper support structure of the toilet from the lower support structure of the toilet by a vertical distance comparable to the height difference between that of a four-year old child and the customer, or customer subset and fusing a sturdy cylinder, that sits on the ground, to the separated upper and lower support structures. The cylinder can blend with bathroom colors other than that of a sink, bath, shower, etc, so that from the doorway of the bathroom, the cylinder mostly hides that the toilet is a toilet and makes the toilet more attractive to the eye.

Further advantages of various aspects will become apparent from a consideration of the ensuing description and accompanying drawings.

Structures and Connections—FIG. 1, 2, 5A, 5B

As shown in FIG. 1, a mechanical-trap toilet according to a first embodiment comprises a lower structure 22 that supports the toilet. The lower support structure sits on and is attached to a bathroom floor (not shown) and is connected to a conventional adjoining drain line 36.

A gasket 45 is sandwiched between an upper support structure 24 and a flange 44 of a waste passageway 34. The waste passageway 34 is an integral part of the lower structure.

A bowl 26 is an integral part of the upper support structure. As shown in FIG. 2, the shape of the bowl 26 below the level of an anti-splash ledge 66 resembles a frustum, an inverted cone that lacks an apex and ends in a bottom outlet 32.

As shown in FIG. 2 and FIG. 5A, a sealing ring 48 is press fitted into a groove that surrounds an outside part of the bowl 26 above the bottom outlet 32.

Reinforcing ribs 38, shown in FIG. 1, help support the waste passageway 34, the bowl 26, and lower support structure 22.

As show in FIG. 1, a saucer-pivoting shaft 90 extends from the right and left sides of the upper support structure 24. The saucer-pivoting shaft 90 is connected to a plate 49. The plate 49 passes forward from sight under saucer-shaped seal 46. Plate 49 and saucer 46 are shown in a fully up, closed, positions. The shaft 90 emerges (not shown) from the right and left sides of the upper support structure 24. It is surrounded, in order, from inside out, by a hermetic radial seal 96, a support bushing 100, and a gasket 94.

Shaft 90 is connected to a hub 132. An arm 130 extends from the hub. The distal or free end of arm 130 is connected to one end of a coil spring 50. The other end of the coil spring 50 is connected to a wall of the toilet 141 as also shown in FIG. 6, FIG. 7, and FIG. 9.

A second arm 108 extends from hub 132 at an angle of about 130 degrees. 108 is connected to trigger 102. One end of the trigger 102 is formed as catch 112, also shown in FIGS. 6, 7, 8, 9, 10 and 11. The other end of trigger 102 is connected to one end of trigger-centering spring 111. The other end of trigger-centering spring 111 is connected to arm 108, as show in FIGS. 6, 7, 8, 10, and 11.

A timing wheel 82 is connected to a timing belt 81, as shown in FIGS. 7 and 8. The timing belt 81 is connected to a sprocket (not shown) of rotary motor 79. The timing wheel 82 rotates freely on saucer-pivoting shaft 90 and is connected to cam 84, as shown in FIGS. 1, 6, and 11.

In one embodiment, the bottom outlet 32 is about 3.25 inches wide, considerably wider than siphon toilets and, when open, thereby much less likely to clog. When closed, it can (1) retain water, urine, solid human waste, and artificial test media in the bowl, and (2) prevent potentially volatile toxic or explosive mixtures of gases from entering a bathroom from an adjoining drain line. In one embodiment, the trap has the general shape of a saucer.

One embodiment of the invention automatically carries 100 test plastic balls an average distance of more than 12 meters (40 feet) with 1.0 to 2.0 liters of water. Another embodiment of the invention can carry 100 balls in excess of 18.3 meter (60 feet) with 1.0 to 2.0 liters (0.3 to 0.5 gallons) with a staggered flush.

Structures and Connections—FIG. 1 and FIG. 2

Bowl 26 is an integral part of upper support structure 24. The bottom of the bowl 26 protrudes downward through upper support structure 24.

The upper support structure 24 sits on and is connected to a lower support structure 22. The lower support structure 24 sits on the ground 23 and is connected to an adjoining drain line 36. A waste passageway 34 is an integral part of the lower support structure. Bowl 26 and waste passageway 34 have bottom outlets that are aligned approximately vertically above an inlet to the adjoining drain line. A sealing ring 48 surrounds and is connected to the outside of the bowl near the bottom outlet of the bowl. The sealing ring may be made of compressible material. In one embodiment, it may be made of a fluoro-elastomer, sold under the du Pont trademark Viton, one of the most corrosion proof compressible materials currently available.

The frustum-shaped bowl 26 has a front part 28 and a rear part 30. The front part 28 inclines 30 to 50 degrees forward and the rear part 30 inclines 5 to 15 degrees rearward from the vertical. The front part 28 and rear part 30 of the bowl 26 are linear; they do not form convexities or concavities. In one embodiment, there can be an inclination in the front part 28 of 40 degrees forward and the rear part 30 of 10 degrees rearward. As mentioned above, this lack of concavities and convexities (1) helps prevent feces and toilet tissue from sticking to those parts of the bowl 26 and thereby makes them easier to rinse, and (2) permits rinse and flush water to fall with greater momentum.

The saucer-pivoting shaft 90 is connected to plate 49. The plate 49 is connected to stud 140, as shown in FIG. 1. The stud 140 is welded to a stiff plate 134 which is molded within, and entirely surrounded by saucer 46, as shown in FIG. 5 A. The sealing ring 48 has a wedge-shaped apex 51 and a roughly flat base 53. The base of the sealing ring 48 is press fitted into a groove. The groove surrounds the outside surface of the toilet bowl 26 above and close to the bottom outlet 32 of the bowl, as shown in FIG. 5B. Apex 51 of the sealing ring 48 extends outward from the bowl. It is compressible and resilient. Thus forceful closure of saucer 16 forcefully compresses 51 against the bowl 26, and thereby hermetically seals the bottom outlet 32 of the bowl. Plate 49, stud 140, and the saucer-shaped seal are shown in their fully open, vertically down positions in FIG. 2.

Electric controls 76 and a flushometer valve 54 are located within the accessory compartment 56, as shown in FIGS. 2 and 3. The flushometer valve 54 is connected to a pressurized water feed 52. The pressurized water feed 52 has an inside diameter of about 12.50 mm (0.50-inch). The water feed 52 can be regulated by a conventional anti-siphon valve, pressure regulator, and or anti-water hammer valve.

As show in FIGS. 2 and 3, spillway 64 is an aperture in an upper front part of the toilet bowl 26. Anti-splash ledge 66 is connected to the bottom of the spillway 64. As discussed below, there is sufficient distance between the spillway 64 and the water outlets 62 to permit bowl contents, when large enough to overflow, to overflow without coming in contact with the water outlets. Thus, in the event of a drop in pressure in the normally pressurized water source, the separation between the spillway 64 and the water outlets 62 prevents bowl contents from being sucked into water hitherto thought to be suitable for drinking.

As shown in FIG. 3, a front part of toilet seat 70 and a front part of a toilet rim 68 are approximately horizontally oriented. A rear part of seat 70 and rim 68 are inclined upward and rearward and are connected to an immobile part of the upper toilet. An aperture in the seat 70 and rim 68 is roughly centered above bottom outlet 32 of the bowl and inlet 36 of an adjoining drain line.

Structures and Connections—FIG. 3

As shown in FIG. 3, rim 68 is formed at the upper part of the bowl. Seat 70 sits on the rim. A button 72 and a button 74 are located on top of the rear of the toilet. The buttons are connected to an electric control 76. The electric control 76 is connected to a saucer-rotating motor 79 and to a flushometer valve 54.

The flushometer valve 54 is connected to a water feed 52 which is connected to a source of pressurized water, which is suitable for drinking. The flushometer valve 54 contains a diaphragm (not shown). The diaphragm is connected to a push-rod 80. The push-rod 80 is connected to a push button 78, which is located on top of the toilet, adjacent to button 72 and button 74. Manually depressing the push button depresses the push-rod 80 and manually opens the flushometer valve 54.

The flushometer valve 54 is connected to water conduits 60. The water conduits 60 run forward on the outside of both sides of the toilet bowl 26. At least two of the water conduits 60 enter the bowl from opposite directions adjacent to each other. The water conduits 60 end inside of the bowl as water outlets 62. Thus, the water outlets 62 point in opposite directions the inside of the bowl 26.

A spillway 64 is provided in an upper front part of the toilet bowl 26. As mentioned below, there sufficient distance between the spillway 64 and the water outlets 62 to permit bowl contents to flow out of the bowl without coming into contact with the water outlets 62 or, in the event of a drop in pressure in the pressurized water source, being sucked into water that is suitable for drinking. An anti-splash ledge 66 is connected to the bottom of the spillway 64 to prevent turbulent rinse water from leaving the bowl.

Connections and Structures—FIG. 4

Bowl 26 has a front 28 and a rear part 30 and a bottom outlet 32. There is a spillway 64 in the top of the front part of the bowl. The front of bowl 28 below the spillway 64 is indented to form an anti-splash ledge 66. The anti-splash ledge 66 confines rinse water to the bowl 26. Thus, it prevents rinse water from splashing out the front of the bowl 28 where rinsing is particularly strong.

At least two water conduits 60 enter the bowl from opposite directions. The water conduits 60 end as adjacent water outlets 62 that point in opposite directions so that they can rinse areas of the bowl below, between, and beyond the outlets, and with particular turbulence towards the front and rear mid-lines of the bowl where, due to the bi-lobed configuration of the human buttock, feces are prone to adhere.

Structures and Connections—FIG. 5A and FIG. 5B

As shown in FIG. 5A, a sealing ring 48 is press fitted into a groove that surrounds the outside of a lower part of a toilet bowl 26.

Saucer-pivoting shaft 90 is connected to plate 49. Plate 49 is connected to stud 140. The stud 140 is welded to a rigid plate 134 which is molded within a flat part of a saucer-shaped seal, saucer 46. The rigid plate 134 stiffens the saucer 46. The periphery of the saucer 46 inclines upward and outward from the flat part of the saucer 46. A washer and wave washer 138 and a nut and jam nut 136 secure plate 47 to the stud 140.

Plate 49 and the saucer 46 are shown pivoted clockwise, fully closed, upward, so that the peripheral part of the saucer 46 is hermetically compressed against the sealing ring 48.

Sealing ring 48 is made of a resilient material. In one embodiment, this material may include Viton, a Du Pont product. As shown in FIG. 5B, the sealing ring 48 has a wedge-shaped apex 51 and a roughly flat base 53. The base of the sealing ring 48 is press fitted into a groove. The groove surrounds the outside surface of the toilet bowl 26 above a bottom outlet 32 of the bowl. The apex faces outward from the bowl 26. Closure of the saucer 46 forces a small area of a periphery 47 of the saucer 46 against a small area of the apex 51.

Structures and Connections of FIG. 6

FIG. 6 shows a side-view from the right of a multi-part external mechanism for opening-and-closing the saucer 46 shown in FIGS. 1, 2, and 5 when the saucer 46 is hermetically locked closed. The mechanism is located outside of upper support structure 24 (not shown) and waste passageway 34 (not shown).

A sprocket on a drive motor (not shown) is connected to a notched timing belt 81. The belt is connected to a notched timing wheel 82. Arm 86 and cam 84 are connected to 82. One end of main spring 50 is fastened to a wall of the toilet; the other end (not shown) is behind the timing wheel 82.

Arm 108 protrudes below the timing wheel 82. Arm 108 is rotationally connected to trigger 102. One end of the trigger 102 is formed as catch 112. The other end of the trigger 102 is connected to the bottom of trigger-centering spring 111. The top of the trigger-centering spring 111 is connected to arm 108. An inside surface of arm 108 is connected to roller 109.

The right end of arm 114 is rotationally attached to a wall of the toilet 141. The other end of arm 114 is free. Roller 115 is connected the outside of arm 114. An adjusting screw 120 is welded to arm 114. The adjusting screw 120 is connected to bracket spring 122. Bracket spring 122 is connected to bracket 124. The bracket 124 is fastened to wall of the toilet 141. The spring 111 urges arm 114 upwards against roller 109 on 108, and a rear end of trigger 102 upward. An electric switch 126 is connected to a wall of the toilet 141 and to electric control 76, as shown in FIG. 3.

Structures and Connections of FIG. 7

FIG. 7 shows a similar view to FIG. 6, but without the timing wheel 82 or the timing belt 81 in order to expose parts of the mechanism for opening and closing the saucer 46. One end of arm 108 is connected to hub 132 and the other end to roller 109. Arm 130 is connected to one end of fully extended main spring 50. The other end of the main spring 50 is anchored to a wall of the toilet 141. The main spring 50 urges 130 and hub 132 counter-clockwise and lock arm 114 and arm 108 together and thereby lock the saucer 46 in its normal position, fully closed.

Main spring 50 can be any mechanical, pneumatic, or magnet spring that opens the saucer fast enough to permit bowl contents to free fall into an adjoining drain line. In one embodiment, the main spring 50 may be a coil spring. The speed with which the main spring 50 snaps open depends on the inertia of the above mentioned multi-part mechanism for opening the saucer 46 and on the strength of the main spring 50. In one embodiment, the saucer 46 may snap open within half of a second.

Structures and Connections of FIG. 8

FIG. 8 shows details of the external multipart mechanism for opening and closing the saucer 46 not shown in FIG. 7. Arm 130 is connected to hub 132. Hub 132 surrounds a saucer-pivoting shaft 90. The hub 132 is connected to a key 91. The key 91 is keyed to shaft 90 so that, when arm 108 rotates clockwise, the hub 132 and the saucer-pivoting shaft 90 rotate clockwise and thereby hermetically compress the saucer 46 against the sealing ring 48. Conversely, when the main spring 50 rotates hub 132 counter-clockwise, the hub 132 rotates shaft 90 counter-clockwise and thereby rotates the saucer 46 open, as shown in FIG. 2.

Roller 109 is connected to an inside lower part of arm 108. The free end of arm 114 is formed as catch 116. Roller 109 is engaged in catch 116. Trigger-centering spring 110 is connected to trigger 102 and to arm 108. The spring 50 urges trigger 102 to rotate to a position that is roughly at a 90° angle to arm 108.

Structures and Connections of FIG. 9

FIG. 9 shows a side-view from the right, minus the timing wheel and timing belt, parts of the multi-part external mechanism for opening and closing the saucer 46 when the saucer 46 has been rotated counter-clockwise to the fully open position shown in FIG. 2. Main spring 50 is fully contracted. Main spring 50 urged arm 130, hub 132, and arm 108 counter-clockwise so that roller 109 on arm 108 no longer engages catch 112 on arm 114. Consequently, the main spring 50 causes arm 108 and trigger 102 to a roughly horizontal position. As show in FIG. 10, relaxation of trigger-centering spring 111 permits trigger 102 to lock the saucer 46 in a normally closed position.

Structures and Connections of FIG. 10

FIG. 10 shows parts of the mechanism for opening and closing the saucer 46 as it begins to rotate the saucer 46 closed. Arm 86 is connected to timing wheel 82. Clockwise rotation of the timing wheel 82 engages catch 87 on arm 86 against catch 112 on trigger arm 102 to rotate the trigger arm 102 clockwise, as shown by an arrow in FIG. 10. Further rotation of timing wheel 82 causes arm 86 to activate leaver 142 of electric switch 126 and thereby electronically terminates operations.

Structures and Connections of FIG. 11,

FIG. 11 shows the positions of structures when the saucer 46 is closed in its normal position, fully up, hermetically compressed against the sealing ring 48. Catch 112 on 102 is disengaged from catch 87 on arm 86. Bracket spring 122 urges adjusting screw 120 upward against the rear end of the trigger arm 102. Upward pressure by spring 122 on screw 120 rotates the rear end of trigger arm 102 upward and the front end of trigger arm 102 downward. The bracket spring 122 urges the free front end of arm 114 upwards to lock against roller 109 and thereby locks the mechanism for rotating the saucer 46 in its fully closed position.

Consequently the toilet is ready (1) to expel urine or (2) solid human waste to a sewer, or (3) to test its ability to carry 100 test balls, or sausages, aka condoms filled with tofu in an adjoining laboratory drain line.

Expelling Urine to a Sewer—FIGS. 3, 4, 6, 8, 9, 11 and 12

FIG. 6 shows a multi-part external mechanism for opening and closing the saucer 46, with the saucer 46 normally locked hermetically closed. A user urinates into the bowl 26 and depresses automated button 72. Depression of button 72 automatically actuates the following events, summarized in FIG. 12.

Electric control 76 opens flushometer valve 54 for a predetermined time, preferably about 100 milliseconds, to permit pressurized water to emerge from opposing water outlets 62 to create an extensive and turbulent rinse pattern, to detach urine from the wall of the bowl 26, as shown in FIG. 3 and FIG. 4.

Depression of button 72 also actuates electric control to start saucer opening and closing motor 79 to rotate clockwise until the saucer 46 is fully open as follows: Clockwise rotation of motor 79 rotates timing belt 81 clockwise. Clockwise rotation of 81 rotates timing wheel 82 clockwise. Continued clockwise rotation of the timing wheel 82 causes cam 84 to depress roller 115. Depression of roller 115 depresses the front end of arm 114. Depression of the front end of arm 114 disengages catch 87 on arm 86 from catch 11 on arm 102 and thereby causes main spring 50 to snap closed. Relaxation of main spring 50 snaps arm 130 on 132 counter clockwise.

Counter clockwise rotation of hub 132 rotates key 91 on saucer pivoting shaft 90 counter clockwise and snaps arm 108 counter clockwise to roughly horizontal position as shown in FIG. 9. Counter clockwise rotation of shaft 90 snaps plate 49 of saucer 47 vertically downward to it fully open position to permits urine and water to free fall into adjoining drain line 36 as shown in FIG. 2. The water and urine gravitationally flow the length of drain line 36 to a sewer system, not shown. 200 to 300 ml (0.05 to 0.08 gallon) is adequate. In one embodiment, the amount may be 250 ml (0.06 gallon). When released, the resilient apex 51 of seal ring 48 rebounds to a decompressed state within less than one second. In one embodiment, the saucer 46 has been tested and hermetically closed and opened about 75,000 times.

Further clockwise rotation of timing wheel 82 by motor 79 closes the saucer 46 as follows: (1) Wheel 82 rotates arm 84 rotates clockwise. (2) Clockwise rotation of 84 depresses roller 115 on arm 114. (3) Depression of arm 114 engages catch 87 on arm 86 with catch 112 on trigger 102 and presses the rear end of trigger 102 against bracket spring 112 so that the saucer is fully closed, as shown in FIGS. 1, 2, and 5 A and 5 B. (4) Motor 79 stops and (5) the operation terminates. The toilet is immediately available for a next user.

Expelling Solid Human Waste to a Sewer with a Staggered Flush—FIGS. 2, 3, 7, 8, 12 and 13—Creation of a Wet Spot

Since there is normally no water in the bowl, a wet spot is required to cushion falling feces to prevent them from unduly adhering to the bowl. In one embodiment, there may be a 1.00-liter (0.25 gallon) wet spot. It is about 85 mm (3.45 inches) deep and has a surface area of about 140 mm by 165 mm (5.75 by 6.75 inches). One embodiment of the invention exceeds minimum ASME standards for wet spots.

To create the above mentioned wet spot a user depresses manual push button 74 for long enough to fill the bowl to a 1.0 liter (0.25 gallon) mark, not shown. If the above 1.00 liter (0.25 gallon) wet spot does not suit a user, the user can create a larger one as follows: The user depresses push button 78, shown in FIGS. 2 and 3. Button 78 manually depresses push-rod 80, shown in FIG. 3. The push-rod disengages the diaphragm in flushometer valve 54. This in turn opens the flushometer valve 54 and permits a quantity of pressurized water to jet into the toilet bowl 26. The user holds button 78 down until there is 1.0 liter (0.25 gallons, in the bowl; enough to fill it to a mark (not shown). Later, the user can experiment with progressively smaller wet spots. Eventually, the user may find an ecologically desirable 1.0 (0.25 gallon) wet spot is adequate.

When ready to expel solid human waste to a sewer, the user depresses automated button 74 to actuate a staggered flush, as summarized in chart FIG. 13: The flushometer valve 54 opens for a predetermined time, preferably about 750 milliseconds, to rinse the bowl 26 free of solid human waste with about 1.0 to 2.0 liters (0.25 to 0.50 gallons) of water.

Motor 79 rotates the timing belt and the timing wheel 82 clockwise until the saucer 46 has opened to its fully down position, as described in detail above. Opening the saucer 46 permits the wet spot plus, the water used to rinse the bowl 26, and solid human waste to free fall into the adjoining drain line.

While the saucer is open and the solid human waste is still moving in the drain line, the flushometer valve 54 automatically opens again for a predetermined time, preferably about 750 milliseconds, to introduce additional water, about 1.0 to 2.0 liters (0.25 to 0.5 gallons) into the drain line behind the moving solid waste. While the saucer 46 is open, the flushometer valve 54 opens for a predetermined time, preferably about one and half seconds to release a second quantity of water, about 3.0 liters (0.75 gallons) into the drain line while the solid human waste is still moving, for a total consumption of about 5.0 to 6.0 liters, (1.25 to 1.50 gallons.

Releasing the above mentioned second quantity of water into the drain line while the solid human waste is still moving, carries the solid waste further than if both quantities of water were to enter the drain line together.

The saucer automatically closes as described in detail above. The operation for expelling solid human waste to a sewer with a staggered flush is terminated. The toilet is ready for the next user.

Note, since the frustum shaped bowl 26 becomes progressively narrows from top outlet to bottom outlet, the free-falling feces, toilet tissue, urine, and wet spot converge so that their total diameter becomes considerably less than that of the waste passageway 34 they transit. Consequently, they are unlikely to adhere to the waste passageway 34.

Testing a Toilet to Carry Asme-Rated Plastic Balls in a Laboratory Drain Line with a Staggered Flush

A tester inserts 100 plastic balls into the normally empty bowl of the toilet and actuates button 74. Button 74 actuates motor 70 to open the saucer, as described in above, so that the balls free-fall into an adjoining laboratory drain line. While the saucer is open, flushometer valve 54 opens for about 750 milliseconds to release a predetermined amount of water into the drain line to impart more momentum to the balls. After about a 750 millisecond delay, while the balls are moving in the drain line, motor 70 re-opens flushometer valve 54 for about 1.5 seconds to release pressurized water into the drain line to impart additional momentum, and, thus greater carry to the balls. Then, the flushometer valve 54 closes and the saucer 46 closes to its normal closed vertically upright position. The motor stops. The operation is terminated and the toilet is immediately available for additional operations.

As mentioned above, paragraph 8.8 of ASME brochure A112. 19.2-2003 states that toilets that may be legally offered for sale in residences and business with an IAPMO rating in the US and Canada on condition they can carry 100 balls an average of 12.2 meters (40 feet), or more, with 6.0 liters (1.6 gallons) or less of water.

One embodiment of the toilet can carry 100 balls in excess of 18.3 meters (60 feet) with about 1.00 to 2.00 liters (0.3 to 0.5 gallons) of water. Apparently, no prior-art toilet carried this number of balls so far with less than 6.0 liters (1.6 gallons).

Per-Person-Per-Day Water Consumption

Some dual-flush siphon and wash-down toilets use about 18 liters (4.76 gallons) per-person-per-day when conventionally used. Most single-flush siphon toilets, when used as recommended by their makers and most single flush wash-down toilets use about 30.0 liters (8.0 gallons) per person per day. One embodiment of the toilet uses about 9.8 liters (2.6 gallons) per day per person when used as recommended.

Conclusions, Ramifications, and Scope

Accordingly the reader will appreciate various aspects of the present invention have several advantages such as water efficiency and cleanliness. For example, the steep-sided bowl, having none of the conventional convexities and concavities helps prevent feces from adhering to the bowl. Opposing water outlets rinse the bowl most turbulently where feces are more prone to adhere. Thus, the outlets are more water efficient and the bowl more likely to remain clean. Furthermore, urine adherent to the bowl can be rinsed into the drain line with about 250 ml (0.07 gallon) of water.

The saucer is normally hermetically compressed against the bowl, so that the contents of the bowl remain in the bowl and sewer gases remain in the sewer. One embodiment of the invention has a saucer that has been tested and opened and then hermetically closed about 75,000 times.

The saucer opens with sufficient rapidity that urine, feces, and or toilet tissue in the bowl can free fall into an adjoining drain line. Thus, unlike current indoor toilets, a wet spot is not necessary when a user merely urinates.

If the toilet is provided in a public bathroom, a laser beam can be directed across the bathroom's doorway so that, whenever a user leaves without flushing, the interruption of the beam will automatically trigger the above operation for flushing solid waste.

The manual push button can be repeatedly actuated to accumulate up to seven liters of water in the bowl to flush toilet tissue that may come rest in the drain line adjoining a business because the drain line may not regularly be flushed by showers, dish washers, clothes washers, sinks, etc., as are drain lines adjoining residences; toilets use less than 30% of water used indoors in residences.

Although the above description contains many details, these details should not be construed as limiting the scope of the present invention, since they are merely illustrative examples of some of the embodiments. Many additional embodiments are possible. For example, the drive motor can be directly connected to the timing-wheel assembly, thus eliminating the need for and expense of a timing belt. In one embodiment, the toilet can utilize a battery capable of powering several thousand automated flushes during a power outage or in buildings not provided with electric power. In one embodiment, the battery can automatically be recharged from the same power source that powers electric controls 76 so that the battery remains charged.

For buyers whose wet spot needs are accommodated by 1 liter (0.25-gallon) of water, a maker can dispense with the manual push button, the manual push rod, and the diaphragm in the flushometer valve 54, thereby reducing its manufacturing costs.

The waste passageway and lower support structure can be up to about 300 mm (12 inches) taller. A manufacture can sell such tall toilets to burgeoning populations for whom today's toilets are uncomfortably low and to myriads of people afflicted with a wide variety of painful disabilities that hamper them when they sit on conventional toilets.

The main spring can be any of a variety of mechanical, pneumatic, or magnetic spring. In one embodiment, the main spring may be a coil spring.

A variety of shock absorbers can be used to dampen an upward thrust of arm 108 and thereby prevent the main spring from shocking and damaging moving parts which open and close the saucer. This will extend the useful life of these parts.

In lieu of a fluoro-elastomer, the sealing ring can be made of a variety other resilient materials, such as varieties of rubber or equivalent polymers that can be compressed many times and promptly rebound to their pre-compression state. Instead of the saucer compressing the point of an apex, in another embodiment it can compress a resilient fold.

The seat, rim, and cover can be conventionally sloped for initial buyer acceptance. In various embodiments the seat, bowl, and waste passageway can be made of a variety of corrosion resistant materials which include, but are not limited to, vitreous china, plastics, metals, or anodized aluminum coated with PTFE.

The weight of a toilet is important to makers, distributors, plumbers, and handy owners. The bowl, upper support, waste passageway, and lower support structure can be made of light corrosive-resistant plastics, or anodized aluminum coated with PTFE. This will reduce the weight of some embodiments of the present invention to about half that of current indoor toilets.

If the toilet is destined for use by males only, a maker. can delete the supplemental flush, and thereby save about 4.00 liters (1.0 gallon) of water per-person-per-day.

The bowl and waste passageway can be made of vitreous china, the surface of which has a finish which repels urine, so that no rinsing of urine is required. Such a finish permits saving of about 250 ml (0.07 gallon) of water each time a male uses the toilet for urination alone.

Thus, the scope is determined by the appended claims and their legal equivalents, rather than by the examples given. 

1. A mechanical trap toilet, comprising: (a) a toilet bowl suitable for receiving human waste, (b) means for connecting said bowl to a drain line, and (c) means for flushing said human waste into said drain line with water with a staggered flush, whereby said staggered flush carries said human waste more efficiently in said drain line.
 2. The toilet of claim 1, further comprising: (a) said drain line being a standard drain line, and (b) means for flushing said human waste into said standard drain line with a staggered flush, whereby said staggered flush carries said human waste more efficiently in said standard drain line.
 3. The toilet of claim 1, further comprising: (a) said bowl being suitable for receiving artificial test media, (b) means for connecting said bowl to a laboratory drain line, and (c) means for flushing said artificial test media in said laboratory drain line with said staggered flush, whereby said staggered flush carries said artificial test media more efficiently in said laboratory drain line.
 4. The toilet of claim 2 further comprising: (a) said drain line being connected to a septic tank, and (b) means for flushing said human waste to said septic tank with said staggered flush, whereby said staggered flush carries said human waste more efficiently to said septic tank.
 5. The toilet of claim 2 wherein said water for carrying said human waste is about 2.00 to 3.00 liters (0.50 to 0.80 liters).
 6. The toilet of claim 3, further comprising: (a) introducing 100 standard test plastic balls into said bowl, and (b) means for flushing said test balls into said laboratory drain line with a staggered flush, wherein about 1.0 to 2.0 liters of said staggered flush can carry said plastic balls an average of more than 12 meters, (40 feet), in said laboratory drain line.
 7. A toilet, capable of rinsing and flushing urine from the toilet into an adjoining drain line with less water, comprising: (a) a toilet, (b) said toilet having a bowl, (c) said bowl having a bottom outlet, (d) said toilet having a saucer shaped valve, aka a saucer, (e) said saucer being normally hermetically sealed against said bottom, (f) means for rotationally opening said saucer, and (g) means for rinsing said bowl, wherein upon introducing urine into said bowl said urine can free fall into said adjoining drain line and gravitationally flow in said adjoining drain line, whereby said toilet can rinse said urine into said adjoining drain line with less water.
 8. The toilet of claim 7, wherein the volume of said water for rinsing urine into said adjoining drain line is about 250 ml (0.25 gallons). 